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1 #include "GrBicubicEffect.h" | 1 #include "GrBicubicEffect.h" |
2 | 2 |
3 #define DS(x) SkDoubleToScalar(x) | 3 #define DS(x) SkDoubleToScalar(x) |
4 | 4 |
5 const SkScalar GrBicubicEffect::gMitchellCoefficients[16] = { | 5 const SkScalar GrBicubicEffect::gMitchellCoefficients[16] = { |
6 DS( 1.0 / 18.0), DS(-9.0 / 18.0), DS( 15.0 / 18.0), DS( -7.0 / 18.0), | 6 DS( 1.0 / 18.0), DS(-9.0 / 18.0), DS( 15.0 / 18.0), DS( -7.0 / 18.0), |
7 DS(16.0 / 18.0), DS( 0.0 / 18.0), DS(-36.0 / 18.0), DS( 21.0 / 18.0), | 7 DS(16.0 / 18.0), DS( 0.0 / 18.0), DS(-36.0 / 18.0), DS( 21.0 / 18.0), |
8 DS( 1.0 / 18.0), DS( 9.0 / 18.0), DS( 27.0 / 18.0), DS(-21.0 / 18.0), | 8 DS( 1.0 / 18.0), DS( 9.0 / 18.0), DS( 27.0 / 18.0), DS(-21.0 / 18.0), |
9 DS( 0.0 / 18.0), DS( 0.0 / 18.0), DS( -6.0 / 18.0), DS( 7.0 / 18.0), | 9 DS( 0.0 / 18.0), DS( 0.0 / 18.0), DS( -6.0 / 18.0), DS( 7.0 / 18.0), |
10 }; | 10 }; |
11 | 11 |
12 | 12 |
13 class GrGLBicubicEffect : public GrGLEffect { | 13 class GrGLBicubicEffect : public GrGLEffect { |
14 public: | 14 public: |
15 GrGLBicubicEffect(const GrBackendEffectFactory& factory, | 15 GrGLBicubicEffect(const GrBackendEffectFactory& factory, |
16 const GrDrawEffect&); | 16 const GrDrawEffect&); |
17 virtual void emitCode(GrGLShaderBuilder*, | 17 virtual void emitCode(GrGLShaderBuilder*, |
18 const GrDrawEffect&, | 18 const GrDrawEffect&, |
19 EffectKey, | 19 EffectKey, |
20 const char* outputColor, | 20 const char* outputColor, |
21 const char* inputColor, | 21 const GrGLSLExpr4& inputColor, |
22 const TransformedCoordsArray&, | 22 const TransformedCoordsArray&, |
23 const TextureSamplerArray&) SK_OVERRIDE; | 23 const TextureSamplerArray&) SK_OVERRIDE; |
24 | 24 |
25 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER
RIDE; | 25 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER
RIDE; |
26 | 26 |
27 private: | 27 private: |
28 typedef GrGLUniformManager::UniformHandle UniformHandle; | 28 typedef GrGLUniformManager::UniformHandle UniformHandle; |
29 | 29 |
30 UniformHandle fCoefficientsUni; | 30 UniformHandle fCoefficientsUni; |
31 UniformHandle fImageIncrementUni; | 31 UniformHandle fImageIncrementUni; |
32 | 32 |
33 typedef GrGLEffect INHERITED; | 33 typedef GrGLEffect INHERITED; |
34 }; | 34 }; |
35 | 35 |
36 GrGLBicubicEffect::GrGLBicubicEffect(const GrBackendEffectFactory& factory, cons
t GrDrawEffect&) | 36 GrGLBicubicEffect::GrGLBicubicEffect(const GrBackendEffectFactory& factory, cons
t GrDrawEffect&) |
37 : INHERITED(factory) { | 37 : INHERITED(factory) { |
38 } | 38 } |
39 | 39 |
40 void GrGLBicubicEffect::emitCode(GrGLShaderBuilder* builder, | 40 void GrGLBicubicEffect::emitCode(GrGLShaderBuilder* builder, |
41 const GrDrawEffect&, | 41 const GrDrawEffect&, |
42 EffectKey key, | 42 EffectKey key, |
43 const char* outputColor, | 43 const char* outputColor, |
44 const char* inputColor, | 44 const GrGLSLExpr4& inputColor, |
45 const TransformedCoordsArray& coords, | 45 const TransformedCoordsArray& coords, |
46 const TextureSamplerArray& samplers) { | 46 const TextureSamplerArray& samplers) { |
47 sk_ignore_unused_variable(inputColor); | 47 sk_ignore_unused_variable(inputColor); |
48 | 48 |
49 SkString coords2D = builder->ensureFSCoords2D(coords, 0); | 49 SkString coords2D = builder->ensureFSCoords2D(coords, 0); |
50 fCoefficientsUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibili
ty, | 50 fCoefficientsUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibili
ty, |
51 kMat44f_GrSLType, "Coefficients"); | 51 kMat44f_GrSLType, "Coefficients"); |
52 fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibi
lity, | 52 fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibi
lity, |
53 kVec2f_GrSLType, "ImageIncrement"); | 53 kVec2f_GrSLType, "ImageIncrement"); |
54 | 54 |
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150 const GrDrawTargetCaps&, | 150 const GrDrawTargetCaps&, |
151 GrTexture* textures[]) { | 151 GrTexture* textures[]) { |
152 int texIdx = random->nextBool() ? GrEffectUnitTest::kSkiaPMTextureIdx : | 152 int texIdx = random->nextBool() ? GrEffectUnitTest::kSkiaPMTextureIdx : |
153 GrEffectUnitTest::kAlphaTextureIdx; | 153 GrEffectUnitTest::kAlphaTextureIdx; |
154 SkScalar coefficients[16]; | 154 SkScalar coefficients[16]; |
155 for (int i = 0; i < 16; i++) { | 155 for (int i = 0; i < 16; i++) { |
156 coefficients[i] = random->nextSScalar1(); | 156 coefficients[i] = random->nextSScalar1(); |
157 } | 157 } |
158 return GrBicubicEffect::Create(textures[texIdx], coefficients); | 158 return GrBicubicEffect::Create(textures[texIdx], coefficients); |
159 } | 159 } |
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